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    Is 25mm 3 core swa good for earth and Bonding

    So me and a colleague were having a discussion about using 25mm 3 core swa as a live, neutral, earth and a Bonding conductor when relocating the position of the consumer unit, I suggested that using a 25mm 4 core as I can't see the 25mm earth being big enough for 16mm earth and 10mm bonding with...
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    Design book advice

    Hi, I'm after a single book that has all of the relevant information in to design circuits, I currently use a selection but it would be very handy if I just had 1 that I could work from... does 1 exist Many thanks
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    Initial verification question

    So I've got my 2391... and was always taught and was under the impression that when carrying out R1+R2 tests on all circuits you must carry out the test at all points on the circuit, not the furthest point or a selection of points, I thought the test was to A. Prove a earth path that is suitable...
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    Does this work need a certificate?

    Hi all, I replace about 30 lights from 2D to led, I'm under this impression I don't need to issue a certificate for this as it's only maintenance, am I wrong because the company are now chasing for a certificate Many thanks
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    Load Testing

    Hi, ive been asked to carry out Load testing on a whole shop to see if the existing supply cable can take more load, now I'm familiar with working out loadings with the on site guide, but the conversation I had led me to believe this can be measured with a clamp meter, surely this way is not...
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    Help with consumer unit and MCB's

    Hi, I am training to be an electrician and would just like some advice, when wiring up a consumer unit you always put the highest amp mcb nearest the main switch, what happens when you get 3 x 20 amp MCB's, 2 of which are type B and 1 type C, does that matter what order they go in. Thanks in...
    • allybally69
    • Thread
    • aus consumer consumer unit electricians' talk help mcb's unit
    • Replies: 3
    • Forum: Australia

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